Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add Postpartum-genushyacinthus29/dotnet-skills --skill dotnet-grpcgit clone --depth 1 https://github.com/Postpartum-genushyacinthus29/dotnet-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/postpartum-genushyacinthus29/dotnet-skills/dotnet-grpc)<a href="https://agentmods.dev/skills/postpartum-genushyacinthus29/dotnet-skills/dotnet-grpc"><img src="https://agentmods.dev/badge/skills/postpartum-genushyacinthus29/dotnet-skills/dotnet-grpc/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/postpartum-genushyacinthus29/dotnet-skills/dotnet-grpc"><img src="https://agentmods.dev/badge/skills/postpartum-genushyacinthus29/dotnet-skills/dotnet-grpc.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00033 | $0.03203 |
| Opus 5 | $0.00016 | $0.01602 |
| Sonnet 5 | $0.00007 | $0.00641 |
| Haiku 4.5 | $0.00003 | $0.00320 |
Grade A, and why
dotnet-grpc scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 461 lines — stays where its author put it; the contents beside it link to each section on GitHub.
gRPC for .NET
Trigger On
- building backend-to-backend RPC services or clients
- adding protobuf contracts, streaming calls, or interceptors
- deciding between gRPC, HTTP APIs, and SignalR
- optimizing gRPC performance and connection management
- implementing service-to-service communication in microservices
Documentation
- gRPC on .NET Overview
- Performance Best Practices with gRPC
- gRPC Client Factory
- gRPC Interceptors
- Call gRPC Services with .NET Client
References
- patterns.md - Detailed proto patterns, streaming implementations, interceptors, health checks, and load balancing
- anti-patterns.md - Common gRPC mistakes with explanations and corrections
Workflow
- Use gRPC where low-latency backend communication, strong contracts, or streaming are the real drivers.
- Treat
.protofiles as source of truth and keep generated code ownership clear. - Choose unary, server streaming, client streaming, or bidirectional streaming based on the interaction model, not by default.
- Do not use gRPC for broad browser-facing APIs unless the limitations and gRPC-Web tradeoffs are explicitly acceptable.
- Handle deadlines, cancellation, auth, and retry behavior explicitly on both server and client paths.
- Validate contract changes carefully because gRPC drift breaks callers fast.
Service Patterns
Basic Unary Service
// greeter.proto
syntax = "proto3";
option csharp_namespace = "GrpcService";
package greet;
service Greeter {
rpc SayHello (HelloRequest) returns (HelloReply);
}
message HelloRequest {
string name = 1;
}
message HelloReply {
string message = 1;
}
What ships with it
2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 11d ago First seen · 461 lines · 33 tokens per session scan A 7eb0e141bb2b
dotnet-grpc is a skill published in the GitHub repository Postpartum-genushyacinthus29/dotnet-skills (10 stars, last pushed yesterday), licensed MIT. It adds 33 tokens to every session and 3,203 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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